从视图模型中打开新窗口
嗨，我有一个初学者的问题。我有shell（它是wpf窗口），在这个shell中是屏幕（它是用户控件/视图模型）。
我想从视图模型打开新窗口，而不是在shell中显示用户控件。
所以我创建了一个新窗口 - ChatView
<Window x:Class="Spirit.Views.ChatView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:extToolkit="clr-namespace:Microsoft.Windows.Controls;assembly=WPFToolkit.Extended" Title="ChatView" Height="545" Width="763">
<Grid Margin="4,4,4,4">
</Grid>
</Window>
public interface IChatViewModel
{
}
[Export("ChatScreen",typeof(IChatViewModel))]
public class ChatViewModel
{
}
public class ShowScreen : IResult
{
readonly Type _screenType;
readonly string _name;
[Import]
public IShellViewModel Shell { get; set; }
Action<object> _initializationAction = screen => { };
public ShowScreen InitializeWith<T>(T argument)
{
_initializationAction = screen =>
{
var initializable = screen as IInitializable<T>;
if (initializable != null)
initializable.Initialize(argument);
};
return this;
}
public ShowScreen(string name)
{
_name = name;
}
public ShowScreen(Type screenType)
{
_screenType = screenType;
}
public void Execute(ActionExecutionContext context)
{
var screen = !string.IsNullOrEmpty(_name)
? IoC.Get<object>(_name)
: IoC.GetInstance(_screenType, null);
_initializationAction(screen);
Shell.ActivateItem(screen);
Completed(this, new ResultCompletionEventArgs());
}
public event EventHandler<ResultCompletionEventArgs> Completed = delegate { };
public static ShowScreen Of<T>()
{
return new ShowScreen(typeof(T));
}
}
没有找到相关结果
已邀请:
2 个回复
吐兄
暑袜眠退
public class DialogHelper { public void ShowDialog<T>(params Object[] param) where T : class { var windowManager = new WindowManager(); T viewModel = Activator.CreateInstance(typeof(T), param) as T; windowManager.ShowWindow(viewModel); } }使用构造函数参数：请注意，我没有使用MEF